Lewis Swift discovered NGC 6691 = Sw. IV-73 on 16 Aug 1884 and recorded "vF; pL; R; pB * nr s[outh].". His position is 2' south-southwest of UGC 11318 and his comment "pB * nr south" applies to mag 9.8 HD 238917 3' south. But the NGC position is further out - 30 sec of RA too far west and E and 3'.3' too far south.

400/500mm - 17.5" (7/20/90): fairly faint, fairly small, round, low surface brightness, broad concentration. Located 2.9' N of mag 9.1 SAO 31090.

Notes by Steve Gottlieb